Originally Posted by Milt Hathaway
If you ever want it to sound good through a sound system, either port it or install a mic on a Kelly Shu mount inside.
What a piece of uneducated advice. The only reason to port or non port would be the feel of the drum and that can be polished with just a little time behind the kit. In my opinion, there is just too much to loose soundwise by porting a 20" bass drum.